Mr Utzon says while he is not happy about the incident, it could have happened anywhere.

"It's just a stupid thing that happens and I don't even feel particularly vindictive about the guy who attacked me," he said.

"I just hope that whatever he gets out of this could possible get him on a better track or make him think twice about attacking people in the future, so that he doesn't ruin his own life by doing things like that."

The state MP for Manly, Mike Baird, has apologised to Mr Utzon.

Mr Baird says alcohol-fuelled violence is a growing problem in the area.

"I feel that I should apologise to him for what he experienced," Mr Baird said.

"It's a real testament to him that he said that this event hasn't tarnished his view of Sydney. We appreciate that, and hopefully he can accept our sincere apologies on behalf of Manly."

Police are questioning a man over the attack, no charges have been laid.

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